Raven is nice but I wouldn't want to date her given her many character flaws. Lately I've been having a fondness for Starfire, at least the deviation from the sexpot that is the comic version. Otherwise, I like Robin, despite the crazy.
Actually, I like the villains more myself. I rather like the revamp the series gave Batman joke villain Killer Moth with his being human and finally seeing creators caring and for their well done revival of the Brother Blood character and getting rid of that horrible image the comic villain has. Although of the OC, Billy Numerous is a hoot, Kitten speaks to me, and Kyd Wykyyd makes a great Owl Man.